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Multiple operation system switching method applicable to ARM (advanced risc machine) framework mobile equipment

An ARM architecture, multi-operating system technology, applied in the direction of program control devices, etc., to achieve the effect of good data security

Inactive Publication Date: 2014-04-30
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage is that the selected operating system needs to be pre-installed, and there are certain requirements for hardware storage space

Method used

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  • Multiple operation system switching method applicable to ARM (advanced risc machine) framework mobile equipment
  • Multiple operation system switching method applicable to ARM (advanced risc machine) framework mobile equipment
  • Multiple operation system switching method applicable to ARM (advanced risc machine) framework mobile equipment

Examples

Experimental program
Comparison scheme
Effect test

example S2

[0037] Example S2: After Uboot is started, enter the menu selection interface. Here we need to add an LCD driver module: create a new s3c6410_fb.c in the driver / video directory to set the registers related to the LCD and modify the related configuration files.

example S3

[0038]Example S3: Refer to the driver transplantation technology, transplant the network card driver on the Uboot with SDIO interface driver, enter the board / smdk6410.c directory, replace the default network card driver with the driver of the wireless network card Marvell8686, and modify the relevant configuration files, so that Added support for wireless network cards, paving the way for subsequent network boot and booting the operating system.

example S4

[0039] Example S4: Refer to the attached Figure 7 In this method, the NAND Flash partition technology is used to partition the Flash memory, and the first 2M space on the Flash is reserved for the client to start the bootloader, that is, the modified Uboot, and then 5M is the Linux operating system kernel partition. Another 5M is the Android operating system kernel partition.

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Abstract

The invention discloses a multiple operation system switching method applicable to ARM (advanced risc machine) framework mobile equipment and belongs to the technical field of an operation system of mobile equipment. The multiple operation system switching method includes: initializing equipment for internal storage, internet equipment, a watchdog and I / O (input / output) firstly after the ARM framework mobile equipment boots, entering a selection interface of the operation system, setting corresponding booting parameters by a boot loader according to the operation system selected by a user, sending booting interrupt to a server end, searching a corresponding system kernel and file systems by a server after an interruption signal is truncated by the server, loading the system kernel to a client end in the form of files, burning into a set Flash partition before booting, mounting the file system under a root directory directly via an nfs (network file system) network protocol, and completing network booting of the operation system. By the aid of the multiple operation system switching method, preinstallation of the operation system on the ARM framework mobile terminal equipment is not required, and the purpose of realizing booting multiple operation systems via the network without local operation system is achieved.

Description

technical field [0001] The invention relates to the technical field of operating systems of mobile devices, in particular to a multi-operating system switching method suitable for mobile devices with an ARM architecture. Background technique [0002] The ARM architecture is a 32-bit RISC CPU architecture. Due to its small size, low power consumption, and low cost, the ARM architecture processor is widely used in various embedded devices, such as most of the current market Smartphones, tablets and other mobile devices all belong to the ARM architecture. [0003] There are two main methods for switching between multiple operating systems on an existing ARM architecture mobile device, one is to use a virtual machine, and the other is to preinstall multiple operating systems on the same device. [0004] Using the virtual machine method, first install the Host operating system and virtual machine management software required by the virtual machine on the hardware device, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/44
Inventor 张尧学熊永华吴敏陈建二王建新王国军周悦芝王慧昭梁伟
Owner CENT SOUTH UNIV
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